Fig. 3
From: Salt stress-induced polyamine biosynthesis contributes to blast resistance in rice
OsSAMDC overexpression rice plants accumulated higher contents of PAs. a, b The total polyamine contents in OsSAMDC-OX and OsSAMDC-RNAi plants. Two-week-old transgenic rice seedlings were cultured and total polyamine levels in OsSAMDC-OX and -RNAi plants were measured. FW, fresh weight. Values are means ± SD (n = 3). Different letters indicate the significant differences based on one-way ANOVA with Tukey’s HSD test. c, d The total polyamine contents in OsSAMDC-OX and OsSAMDC-RNAi plants under salt treatment. Rice seedlings were treated with 50 mM NaCl for 5-d. Others aresame as the mentioned above. e, f Growth performances of OsSAMDC-OX and OsSAMDC-RNAi plants under salt-stressed conditions. Seeds were cultured in ¼ MS medium containing 50 mM and 100 mM salt concentration for 7-d. The roots and shoot length (RL and SL) were measured. Values are means ± SD (n = 3). Different letters indicate the significant differences based on one-way ANOVA with Tukey’s HSD test